Winter is coming and that means cooler temperatures outdoors. If your cat likes to roam around outside, then you might want to keep it warm by providing it with a heated cat house.
Of course, you can use the heated cat house indoors as well so no matter where you put it, your cat will be able to stay warm whatever the weather. Then again, most cats simply find warmth by snuggling in your bed and kicking you out of it so you can use the heated cat house instead.